description AWS IoT Greengrass Overview
AWS IoT Greengrass provides a serverless compute and messaging layer that extends cloud capabilities to edge devices. It allows you to run machine learning models, process data locally, and connect to AWS services without requiring constant internet connectivity. Ideal for industrial automation, retail analytics, and smart cities.
insights Ranking position
AWS IoT Greengrass ranks #9 of 48 in the Cloud Computing ranking, behind Hetzner Cloud, ahead of Railway.
balance AWS IoT Greengrass Pros & Cons
- Low-latency local processing
- Works during connectivity loss
- Remote component deployment
- Strong AWS integration
- Steep initial learning curve
- Significant device-side management
- Local storage options limited
help AWS IoT Greengrass FAQ
What is the difference between AWS IoT Greengrass and AWS IoT Core?
AWS IoT Core is a managed cloud service that connects IoT devices to AWS and routes messages between them, while AWS IoT Greengrass extends AWS compute and messaging capabilities to the edge devices themselves. Greengrass lets you run Lambda functions, Docker containers, and ML inference locally on a device, whereas IoT Core does not execute code on the device.
Can AWS IoT Greengrass operate without an internet connection?
Yes, AWS IoT Greengrass is specifically designed to run locally and can execute Lambda functions, process data, and run machine learning models on edge devices even when disconnected from the cloud. Once connectivity is restored, Greengrass synchronizes queued data back to AWS services such as IoT Core and S3.
What is the difference between AWS IoT Greengrass V1 and V2?
AWS IoT Greengrass V2, released in late 2020, replaced V1 with a modular component-based architecture, allowing you to deploy only the specific functionality you need rather than a monolithic runtime. V2 also expanded language support for components and improved the deployment workflow through the AWS IoT console and CLI.
Does AWS IoT Greengrass cost extra beyond standard AWS service charges?
AWS IoT Greengrass V2 is available at no additional software charge—you pay only for the underlying AWS services it interacts with, such as AWS IoT Core messaging, S3 storage, or SageMaker for ML model deployment. There is no separate per-device licensing fee for the Greengrass Core software itself.
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